1996 Johnson Evinrude "ED" 9.9 thru 30 2-Cylinder Service Manual, P/N 507122, Page 67Get this manual
Function Test Conduct this test with the motor in test tank or on the boatBefore testing, loosen fuel tank gas cap momentarily to release any pressure that may have built upFuel tank must not be more than 30 in(76 cm) below fuel pump
1Remove carburetor to fuel pump hoseConnect fuel pressure gauge (obtain locally) between the carburetor and fuel pump63328